US6802372B2 - Apparatus for releasing a ball into a wellbore - Google Patents
Apparatus for releasing a ball into a wellbore Download PDFInfo
- Publication number
- US6802372B2 US6802372B2 US10/208,724 US20872402A US6802372B2 US 6802372 B2 US6802372 B2 US 6802372B2 US 20872402 A US20872402 A US 20872402A US 6802372 B2 US6802372 B2 US 6802372B2
- Authority
- US
- United States
- Prior art keywords
- ball
- wellbore
- piston
- plug
- tubular body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime, expires
Links
- 239000012530 fluid Substances 0.000 claims abstract description 106
- 239000004568 cement Substances 0.000 claims description 73
- 238000000034 method Methods 0.000 claims description 8
- 230000003213 activating effect Effects 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 description 7
- 238000005553 drilling Methods 0.000 description 7
- 230000009977 dual effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- -1 i.e. Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
- E21B33/14—Methods or devices for cementing, for plugging holes, crevices, or the like for cementing casings into boreholes
- E21B33/16—Methods or devices for cementing, for plugging holes, crevices, or the like for cementing casings into boreholes using plugs for isolating cement charge; Plugs therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
- E21B34/142—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools unsupported or free-falling elements, e.g. balls, plugs, darts or pistons
Abstract
Description
Claims (41)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/208,724 US6802372B2 (en) | 2002-07-30 | 2002-07-30 | Apparatus for releasing a ball into a wellbore |
PCT/US2003/023670 WO2004011770A2 (en) | 2002-07-30 | 2003-07-29 | Apparatus for releasing a ball into a wellbore |
AU2003256968A AU2003256968A1 (en) | 2002-07-30 | 2003-07-29 | Apparatus for releasing a ball into a wellbore |
US10/867,960 US7143831B2 (en) | 2002-07-30 | 2004-06-15 | Apparatus for releasing a ball into a wellbore |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/208,724 US6802372B2 (en) | 2002-07-30 | 2002-07-30 | Apparatus for releasing a ball into a wellbore |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/867,960 Division US7143831B2 (en) | 2002-07-30 | 2004-06-15 | Apparatus for releasing a ball into a wellbore |
Publications (2)
Publication Number | Publication Date |
---|---|
US20040020641A1 US20040020641A1 (en) | 2004-02-05 |
US6802372B2 true US6802372B2 (en) | 2004-10-12 |
Family
ID=31186879
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/208,724 Expired - Lifetime US6802372B2 (en) | 2002-07-30 | 2002-07-30 | Apparatus for releasing a ball into a wellbore |
US10/867,960 Expired - Lifetime US7143831B2 (en) | 2002-07-30 | 2004-06-15 | Apparatus for releasing a ball into a wellbore |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/867,960 Expired - Lifetime US7143831B2 (en) | 2002-07-30 | 2004-06-15 | Apparatus for releasing a ball into a wellbore |
Country Status (3)
Country | Link |
---|---|
US (2) | US6802372B2 (en) |
AU (1) | AU2003256968A1 (en) |
WO (1) | WO2004011770A2 (en) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080251253A1 (en) * | 2007-04-13 | 2008-10-16 | Peter Lumbye | Method of cementing an off bottom liner |
US20090188664A1 (en) * | 2008-01-28 | 2009-07-30 | Smith Jr Sidney K | Launching Tool for Releasing Cement Plugs Downhole |
US20100084145A1 (en) * | 2008-10-07 | 2010-04-08 | Greg Giem | Multiple Activation-Device Launcher For A Cementing Head |
US20110067866A1 (en) * | 2009-09-03 | 2011-03-24 | Joel Rondeau | Equipment for remote launching of cementing plugs |
US20110067865A1 (en) * | 2009-09-24 | 2011-03-24 | Joel Rondeau | Equipment for remote launching of cementing plugs |
US8327937B2 (en) | 2009-12-17 | 2012-12-11 | Schlumberger Technology Corporation | Equipment for remote launching of cementing plugs |
US8469093B2 (en) | 2009-08-19 | 2013-06-25 | Schlumberger Technology Corporation | Apparatus and method for autofill equipment activation |
US9163470B2 (en) | 2008-10-07 | 2015-10-20 | Schlumberger Technology Corporation | Multiple activation-device launcher for a cementing head |
US9657548B2 (en) | 2013-02-12 | 2017-05-23 | Weatherford Technology Holdings, Llc | Apparatus and methods of running casing in a dual gradient system |
US9708894B2 (en) | 2014-08-27 | 2017-07-18 | Baker Hughes Incorporated | Inertial occlusion release device |
US9745847B2 (en) | 2014-08-27 | 2017-08-29 | Baker Hughes Incorporated | Conditional occlusion release device |
US9797220B2 (en) | 2014-03-06 | 2017-10-24 | Weatherford Technology Holdings, Llc | Tieback cementing plug system |
US10100601B2 (en) | 2014-12-16 | 2018-10-16 | Baker Hughes, A Ge Company, Llc | Downhole assembly having isolation tool and method |
US10190397B2 (en) | 2014-05-13 | 2019-01-29 | Weatherford Technology Holdings, Llc | Closure device for a surge pressure reduction tool |
US10246968B2 (en) | 2014-05-16 | 2019-04-02 | Weatherford Netherlands, B.V. | Surge immune stage system for wellbore tubular cementation |
US10378304B2 (en) | 2017-03-08 | 2019-08-13 | Weatherford Netherlands, B.V. | Sub-surface release plug system |
US10428623B2 (en) * | 2016-11-01 | 2019-10-01 | Baker Hughes, A Ge Company, Llc | Ball dropping system and method |
US10487618B2 (en) | 2013-10-11 | 2019-11-26 | Weatherford Netherlands, B.V. | System and method for sealing a wellbore |
US10961803B2 (en) | 2015-05-26 | 2021-03-30 | Weatherford Technology Holdings, Llc | Multi-function dart |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6959766B2 (en) * | 2003-08-22 | 2005-11-01 | Halliburton Energy Services, Inc. | Downhole ball drop tool |
GB0425098D0 (en) * | 2004-11-13 | 2004-12-15 | Caledus Ltd | Apparatus for use in a well bore |
US7322413B2 (en) * | 2005-07-15 | 2008-01-29 | Halliburton Energy Services, Inc. | Equalizer valve assembly |
GB0710480D0 (en) * | 2007-06-01 | 2007-07-11 | Churchill Drilling Tools Ltd | Downhole apparatus |
US8408290B2 (en) * | 2009-10-05 | 2013-04-02 | Halliburton Energy Services, Inc. | Interchangeable drillable tool |
EP2314829A1 (en) | 2009-10-21 | 2011-04-27 | Services Pétroliers Schlumberger | Modular dart launching valve |
US8936088B2 (en) * | 2010-05-20 | 2015-01-20 | Baker Hughes Incorporated | Cutting assembly and method of cutting coiled tubing |
US8459358B2 (en) * | 2010-05-20 | 2013-06-11 | Baker Hughes Incorporated | Cutting dart and method of using the cutting dart |
US9200499B2 (en) | 2011-03-14 | 2015-12-01 | Smith International, Inc. | Dual wiper plug system |
US9297230B2 (en) * | 2012-10-16 | 2016-03-29 | Halliburton Energy Services, Inc. | Telescoping latching mechanism for casing cementing plug |
GB201304833D0 (en) * | 2013-03-15 | 2013-05-01 | Petrowell Ltd | Actuating apparatus |
WO2015073695A2 (en) * | 2013-11-13 | 2015-05-21 | Hydrawell Inc. | One-trip cut and pull system and apparatus |
WO2015160338A1 (en) * | 2014-04-16 | 2015-10-22 | Halliburton Energy Services, Inc. | Plugging of a flow passage in a subterranean well |
MX2017005771A (en) * | 2014-12-01 | 2017-07-28 | Halliburton Energy Services Inc | Flow controlled ball release tool. |
CN107939335B (en) * | 2017-11-16 | 2020-09-25 | 中国石油集团川庆钻探工程有限公司 | Wear-resistant anti-backflow double-rubber-plug system for well cementation and using method |
CN111946295B (en) * | 2020-09-04 | 2022-10-04 | 中国石油天然气股份有限公司 | Plug seat |
Citations (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2117536A (en) * | 1936-10-10 | 1938-05-17 | Baker Oil Tools Inc | Valve structure for well casings and tubing |
US3545542A (en) | 1968-06-10 | 1970-12-08 | Byron Jackson Inc | Cementing plug launching apparatus |
US4893678A (en) * | 1988-06-08 | 1990-01-16 | Tam International | Multiple-set downhole tool and method |
US5335727A (en) | 1992-11-04 | 1994-08-09 | Atlantic Richfield Company | Fluid loss control system for gravel pack assembly |
US5413172A (en) * | 1992-11-16 | 1995-05-09 | Halliburton Company | Sub-surface release plug assembly with non-metallic components |
US5511618A (en) | 1994-03-22 | 1996-04-30 | Weatherford/Lamb, Inc. | Fill valve |
US5553667A (en) | 1995-04-26 | 1996-09-10 | Weatherford U.S., Inc. | Cementing system |
US5662169A (en) | 1996-05-02 | 1997-09-02 | Abb Vetco Gray Inc. | Cuttings injection wellhead system |
US5669443A (en) | 1995-09-04 | 1997-09-23 | Weatherford /Lamb, Inc. | Shoe for used in the construction of oil and gas wells |
US5680902A (en) | 1994-03-22 | 1997-10-28 | Weatherford/Lamb, Inc. | Wellbore valve |
US5836395A (en) | 1994-08-01 | 1998-11-17 | Weatherford/Lamb, Inc. | Valve for wellbore use |
US5909771A (en) | 1994-03-22 | 1999-06-08 | Weatherford/Lamb, Inc. | Wellbore valve |
US6003607A (en) * | 1996-09-12 | 1999-12-21 | Halliburton Energy Services, Inc. | Wellbore equipment positioning apparatus and associated methods of completing wells |
US6056053A (en) | 1995-04-26 | 2000-05-02 | Weatherford/Lamb, Inc. | Cementing systems for wellbores |
US6082451A (en) | 1995-04-26 | 2000-07-04 | Weatherford/Lamb, Inc. | Wellbore shoe joints and cementing systems |
US6129152A (en) | 1998-04-29 | 2000-10-10 | Alpine Oil Services Inc. | Rotating bop and method |
US6131662A (en) * | 1996-09-12 | 2000-10-17 | Halliburton Energy Services, Inc. | Methods of completing wells utilizing wellbore equipment positioning apparatus |
US6155350A (en) * | 1999-05-03 | 2000-12-05 | Baker Hughes Incorporated | Ball seat with controlled releasing pressure and method setting a downhole tool ball seat with controlled releasing pressure and method setting a downholed tool |
US6209663B1 (en) | 1998-05-18 | 2001-04-03 | David G. Hosie | Underbalanced drill string deployment valve method and apparatus |
US6220360B1 (en) * | 2000-03-09 | 2001-04-24 | Halliburton Energy Services, Inc. | Downhole ball drop tool |
US6227306B1 (en) | 1997-10-21 | 2001-05-08 | Tesco Corporation | Pipe gripping device |
US6263982B1 (en) | 1998-03-02 | 2001-07-24 | Weatherford Holding U.S., Inc. | Method and system for return of drilling fluid from a sealed marine riser to a floating drilling rig while drilling |
US20010045288A1 (en) | 2000-02-04 | 2001-11-29 | Allamon Jerry P. | Drop ball sub and system of use |
US6343658B2 (en) | 1998-09-08 | 2002-02-05 | Halliburton Energy Services, Inc. | Underbalanced well completion |
US6419015B1 (en) | 1997-10-11 | 2002-07-16 | Weatherford/Lamb, Inc. | Apparatus and a method for launching plugs |
US6491103B2 (en) * | 2001-04-09 | 2002-12-10 | Jerry P. Allamon | System for running tubular members |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5036922A (en) * | 1990-03-30 | 1991-08-06 | Texas Iron Works, Inc. | Single plug arrangement, lock therefor and method of use |
US5595246A (en) * | 1995-02-14 | 1997-01-21 | Baker Hughes Incorporated | One trip cement and gravel pack system |
US5533667A (en) | 1995-09-22 | 1996-07-09 | Perf-Pak | Separable modular containers |
US6318472B1 (en) * | 1999-05-28 | 2001-11-20 | Halliburton Energy Services, Inc. | Hydraulic set liner hanger setting mechanism and method |
-
2002
- 2002-07-30 US US10/208,724 patent/US6802372B2/en not_active Expired - Lifetime
-
2003
- 2003-07-29 AU AU2003256968A patent/AU2003256968A1/en not_active Abandoned
- 2003-07-29 WO PCT/US2003/023670 patent/WO2004011770A2/en not_active Application Discontinuation
-
2004
- 2004-06-15 US US10/867,960 patent/US7143831B2/en not_active Expired - Lifetime
Patent Citations (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2117536A (en) * | 1936-10-10 | 1938-05-17 | Baker Oil Tools Inc | Valve structure for well casings and tubing |
US3545542A (en) | 1968-06-10 | 1970-12-08 | Byron Jackson Inc | Cementing plug launching apparatus |
US4893678A (en) * | 1988-06-08 | 1990-01-16 | Tam International | Multiple-set downhole tool and method |
US5335727A (en) | 1992-11-04 | 1994-08-09 | Atlantic Richfield Company | Fluid loss control system for gravel pack assembly |
US5413172A (en) * | 1992-11-16 | 1995-05-09 | Halliburton Company | Sub-surface release plug assembly with non-metallic components |
US5690177A (en) | 1994-03-22 | 1997-11-25 | Weatherford Lamb, Inc. | Fill valve |
US5511618A (en) | 1994-03-22 | 1996-04-30 | Weatherford/Lamb, Inc. | Fill valve |
US5909771A (en) | 1994-03-22 | 1999-06-08 | Weatherford/Lamb, Inc. | Wellbore valve |
US5680902A (en) | 1994-03-22 | 1997-10-28 | Weatherford/Lamb, Inc. | Wellbore valve |
US5836395A (en) | 1994-08-01 | 1998-11-17 | Weatherford/Lamb, Inc. | Valve for wellbore use |
US5813457A (en) | 1995-04-26 | 1998-09-29 | Weatherford/Lamb, Inc. | Wellbore cementing system |
US5787979A (en) | 1995-04-26 | 1998-08-04 | Weatherford/Lamb, Inc. | Wellbore cementing system |
US6056053A (en) | 1995-04-26 | 2000-05-02 | Weatherford/Lamb, Inc. | Cementing systems for wellbores |
US5553667A (en) | 1995-04-26 | 1996-09-10 | Weatherford U.S., Inc. | Cementing system |
US6082451A (en) | 1995-04-26 | 2000-07-04 | Weatherford/Lamb, Inc. | Wellbore shoe joints and cementing systems |
US5669443A (en) | 1995-09-04 | 1997-09-23 | Weatherford /Lamb, Inc. | Shoe for used in the construction of oil and gas wells |
US5662169A (en) | 1996-05-02 | 1997-09-02 | Abb Vetco Gray Inc. | Cuttings injection wellhead system |
US6131662A (en) * | 1996-09-12 | 2000-10-17 | Halliburton Energy Services, Inc. | Methods of completing wells utilizing wellbore equipment positioning apparatus |
US6003607A (en) * | 1996-09-12 | 1999-12-21 | Halliburton Energy Services, Inc. | Wellbore equipment positioning apparatus and associated methods of completing wells |
US6419015B1 (en) | 1997-10-11 | 2002-07-16 | Weatherford/Lamb, Inc. | Apparatus and a method for launching plugs |
US6227306B1 (en) | 1997-10-21 | 2001-05-08 | Tesco Corporation | Pipe gripping device |
US6263982B1 (en) | 1998-03-02 | 2001-07-24 | Weatherford Holding U.S., Inc. | Method and system for return of drilling fluid from a sealed marine riser to a floating drilling rig while drilling |
US6129152A (en) | 1998-04-29 | 2000-10-10 | Alpine Oil Services Inc. | Rotating bop and method |
US6209663B1 (en) | 1998-05-18 | 2001-04-03 | David G. Hosie | Underbalanced drill string deployment valve method and apparatus |
US6343658B2 (en) | 1998-09-08 | 2002-02-05 | Halliburton Energy Services, Inc. | Underbalanced well completion |
US6155350A (en) * | 1999-05-03 | 2000-12-05 | Baker Hughes Incorporated | Ball seat with controlled releasing pressure and method setting a downhole tool ball seat with controlled releasing pressure and method setting a downholed tool |
US20010045288A1 (en) | 2000-02-04 | 2001-11-29 | Allamon Jerry P. | Drop ball sub and system of use |
US6390200B1 (en) | 2000-02-04 | 2002-05-21 | Allamon Interest | Drop ball sub and system of use |
US6220360B1 (en) * | 2000-03-09 | 2001-04-24 | Halliburton Energy Services, Inc. | Downhole ball drop tool |
US6491103B2 (en) * | 2001-04-09 | 2002-12-10 | Jerry P. Allamon | System for running tubular members |
Non-Patent Citations (3)
Title |
---|
"Sub-Surface Release Cementing Plug System," Weatherford Elastomer Products, Weatherford/Lamb, Inc., Brochure No. 94.01, 1997, 4 Pages. |
International Search Report, International Application No. PCT/US 03/23670, dated Feb. 20, 2004. |
PCT Invitation to Pay Additional Fees, International Application No. PCT/US 03/23670 dated Dec. 4, 2003. |
Cited By (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080251253A1 (en) * | 2007-04-13 | 2008-10-16 | Peter Lumbye | Method of cementing an off bottom liner |
US20090188664A1 (en) * | 2008-01-28 | 2009-07-30 | Smith Jr Sidney K | Launching Tool for Releasing Cement Plugs Downhole |
US7845400B2 (en) | 2008-01-28 | 2010-12-07 | Baker Hughes Incorporated | Launching tool for releasing cement plugs downhole |
US20100084145A1 (en) * | 2008-10-07 | 2010-04-08 | Greg Giem | Multiple Activation-Device Launcher For A Cementing Head |
US9163470B2 (en) | 2008-10-07 | 2015-10-20 | Schlumberger Technology Corporation | Multiple activation-device launcher for a cementing head |
US8770293B2 (en) | 2008-10-07 | 2014-07-08 | Schlumberger Technology Corporation | Multiple activation-device launcher for a cementing head |
US8069922B2 (en) | 2008-10-07 | 2011-12-06 | Schlumberger Technology Corporation | Multiple activation-device launcher for a cementing head |
US8555972B2 (en) | 2008-10-07 | 2013-10-15 | Schlumberger Technology Corporation | Multiple activation-device launcher for a cementing head |
US8469093B2 (en) | 2009-08-19 | 2013-06-25 | Schlumberger Technology Corporation | Apparatus and method for autofill equipment activation |
US8316931B2 (en) | 2009-09-03 | 2012-11-27 | Schlumberger Technology Corporation | Equipment for remote launching of cementing plugs |
US20110067866A1 (en) * | 2009-09-03 | 2011-03-24 | Joel Rondeau | Equipment for remote launching of cementing plugs |
US8327930B2 (en) | 2009-09-24 | 2012-12-11 | Schlumberger Technology Corporation | Equipment for remote launching of cementing plugs |
US20110067865A1 (en) * | 2009-09-24 | 2011-03-24 | Joel Rondeau | Equipment for remote launching of cementing plugs |
US8327937B2 (en) | 2009-12-17 | 2012-12-11 | Schlumberger Technology Corporation | Equipment for remote launching of cementing plugs |
US8622131B2 (en) | 2009-12-17 | 2014-01-07 | Schlumberger Technology Corporation | Equipment for remote launching of cementing plugs |
US9657548B2 (en) | 2013-02-12 | 2017-05-23 | Weatherford Technology Holdings, Llc | Apparatus and methods of running casing in a dual gradient system |
US10487618B2 (en) | 2013-10-11 | 2019-11-26 | Weatherford Netherlands, B.V. | System and method for sealing a wellbore |
US9797220B2 (en) | 2014-03-06 | 2017-10-24 | Weatherford Technology Holdings, Llc | Tieback cementing plug system |
US10774613B2 (en) | 2014-03-06 | 2020-09-15 | Weatherford Technology Holdings, Llc | Tieback cementing plug system |
US10190397B2 (en) | 2014-05-13 | 2019-01-29 | Weatherford Technology Holdings, Llc | Closure device for a surge pressure reduction tool |
US10246968B2 (en) | 2014-05-16 | 2019-04-02 | Weatherford Netherlands, B.V. | Surge immune stage system for wellbore tubular cementation |
US9745847B2 (en) | 2014-08-27 | 2017-08-29 | Baker Hughes Incorporated | Conditional occlusion release device |
US9708894B2 (en) | 2014-08-27 | 2017-07-18 | Baker Hughes Incorporated | Inertial occlusion release device |
US10100601B2 (en) | 2014-12-16 | 2018-10-16 | Baker Hughes, A Ge Company, Llc | Downhole assembly having isolation tool and method |
US10961803B2 (en) | 2015-05-26 | 2021-03-30 | Weatherford Technology Holdings, Llc | Multi-function dart |
US10428623B2 (en) * | 2016-11-01 | 2019-10-01 | Baker Hughes, A Ge Company, Llc | Ball dropping system and method |
US10378304B2 (en) | 2017-03-08 | 2019-08-13 | Weatherford Netherlands, B.V. | Sub-surface release plug system |
US11286742B2 (en) | 2017-03-08 | 2022-03-29 | Weatherford Netherlands, B.V. | Sub-surface release plug system |
Also Published As
Publication number | Publication date |
---|---|
AU2003256968A1 (en) | 2004-02-16 |
WO2004011770A2 (en) | 2004-02-05 |
US7143831B2 (en) | 2006-12-05 |
US20040231836A1 (en) | 2004-11-25 |
WO2004011770A3 (en) | 2004-04-08 |
US20040020641A1 (en) | 2004-02-05 |
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